CN2309359Y - Sloping beam central-axis controlled bridge expansion apparatus - Google Patents
Sloping beam central-axis controlled bridge expansion apparatus Download PDFInfo
- Publication number
- CN2309359Y CN2309359Y CN 97234999 CN97234999U CN2309359Y CN 2309359 Y CN2309359 Y CN 2309359Y CN 97234999 CN97234999 CN 97234999 CN 97234999 U CN97234999 U CN 97234999U CN 2309359 Y CN2309359 Y CN 2309359Y
- Authority
- CN
- China
- Prior art keywords
- steel
- cant beam
- girder steel
- beams
- extension joint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model relates to a sloping beam central-axis controlled bridge expansion apparatus whose structure comprises a plurality of abnormal shaped steel I-beams. The utility model is characterized in that the steel I-beams are connected by rubber contraction bands; the lower part of the steel I-beam is connected with a framework; the framework is connected in sliding connection with a rectangular oblique beam which penetrates through the framework; a plurality of rectangular oblique beams are distributed in overlapped V-shaped diagonal distribution; the both ends of the oblique beam is arranged on a sliding supporting stand in a bevel bearing box; the axle line of the overlapped V-shaped oblique beams is provided with a longitudinal middle shaft, which goes through the round hole of a connecting plate on the lower part of the steel I-beam and connected with a transverse steel beam on the upper part in slip connection.
Description
The utility model relates to a kind of heavy splayed cant beam axis control formula bridge extension joint that is used for bridge breaking joint joining place.
In the prior art, the bridge extension joint that is used for bridge breaking joint joining place comprises many transversely arranged special-shaped steel I-beams, between the side direction on adjacent girder steel top, there is bird form rubber telescopic band to connect, the many crossbeams that vertical setting is arranged in the bottom of special-shaped steel I-beam, the form of crossbeam has square beam, rectangle crossbeam and circular crossbeam, and the two ends of crossbeam are installed in the supported box of various ways.Connected mode between transversely arranged girder steel and the vertical crossbeam of not putting also has multiple, as buckle type, single wall bracket type and circular supporting base formula etc.The buckle type structure, bonding strength is relatively poor.Single wall bracket type structure comprises special-shaped steel I-beam, multiplets such as vibration pad, slide block, square beam, slide block, vibration pad and shock mount are arranged below the steel beam bottom, therefore the whole height of whole stretching device is higher, the basis is installed requires deeplyer, is difficult to adapt to installing on the more shallow position, basis.The bridge extension joint of circular supporting base formula structure can only be used for gradient spends with interior skew bridge less than 5, and can not be used for the skew bridges of gradient greater than 5 degree.
The purpose of this utility model is the defective that overcomes in the above-mentioned prior art, provide that a kind of whole height is lower, the anti-ability of inclining of pressure-bearing is strong, the bridge that can be used for gradient less (＜5 degree) also can be used for the gradient heavy splayed cant beam axis control formula bridge extension joint of the bridge of (＞5 degree) greatly.
The utility model is to realize like this, this heavy splayed cant beam axis control formula bridge extension joint that is used for bridge breaking joint joining place comprises many transversely arranged special-shaped steel I-beams, adjacent girder steel upper side between have the rubber telescopic band to connect, the two ends plush copper of telescopic band embeds in the type mouth groove of adjacent girder steel side direction, be characterized in: special-shaped steel I-beam bottom connecting frame structure, frame construction is welded by the steel plate bar, frame construction is slidingly connected with the rectangle cant beam that vertically passes wherein, vertically many rectangle cant beams that distribute are heavy splayed oblique line distribution, the two ends of cant beam respectively have a bevel to hold case, the two ends of cant beam place on the sliding bearing seat that holds in the case, and the cant beam top of holding in the case is provided with the arc spring bearer plate.Axis at heavy splayed cant beam is provided with longitudinal central axis, and axis passes the circular hole of horizontal girder steel bottom junction plate and the horizontal girder steel on top is slidingly connected.Its operating principle is: the case that holds on stretching device both sides is imbedded in the bridge or pier of reserved empty position, the periphery that holds case has dowel, become overall structure by it with beam body or pier dowel and the anchoring of bridge floor network reinforcing bar, at the anchoring place poured concrete of reserved empty position.During vehicle process stretching device, shock loading and static load are acted on the many transversely arranged shaped steel beams, load is by the frame construction of girder steel bottom, pass to heavy splayed cant beam, pass to supporting base and hold case and decay gradually by cant beam, Stress Transfer is absorbed by beam body or pier at last to anchor system and the bridge or the pier on stretching device both sides.Owing to adopted the structure of special-shaped steel I-beam bottom lead frame structure, the rectangle cant beam of load-bearing is directly passed frame construction, the two ends of cant beam place in the Load-bearing box, therefore, single wall bracket type structure is compared multiplets such as having saved vibration pad, slide block in structure of the present utility model and the prior art, has reduced the height of whole stretching device.Again because the right and left of rectangle cant beam and frame construction keeps certain clearance, so the rectangle cant beam can the certain angle of horizontal slip displacement in framework, and not stuck by the right and left frame: so the utility model can be applicable to that gradient is connected greater than the breaking joint of the skew bridges of 5 degree.The setting of heavy splayed oblique beam can be transmitted the power of transversely arranged girder steel bearing load mutually, has reduced the flexural stress of girder steel.Axis at heavy splayed cant beam is provided with longitudinal central axis, has controlled the horizontal looseness of many transversely arranged girder steels.In addition, hold sliding bearing seat in the case and be with spring bearer plate and cant beam and be slidingly connected, freely the stretching of adaptation cant beam.
Under the base plate of adjacent special-shaped steel I-beam of the present utility model leverage is housed, leverage is flexibly connected by short lever that is fixed on the base plate bottom and long lever and forms.Because the beam body is flexible, make short lever promote long lever, and the pin joint in the long lever is fixed on the intermediate active girder steel base plate, when thereby bridge beam body is stretched, promote lever plate mechanism and play interlocking action, girder steel reaches the effect of evenly separating displacement interval between each girder steel with moving displacement in the middle of making.
Be lined with oily nylon slide plate in the upper and lower sheet frame of frame construction that girder steel of the present utility model bottom connects, the distance between the upper and lower slide plate is complementary with the height of the rectangle cant beam of vertical setting.It is good that this oil nylon slide plate has lubricity, and friction factor is little, and characteristics such as bearing strength height make rectangle cant beam flexible freedom in slide plate.
Be lined with elastic graph in the circular hole of girder steel of the present utility model bottom junction plate.Elastic ring makes axis directly not contact with the junction plate circular hole, has reduced wearing and tearing, also makes axis flexible freedom in elastic ring.
Total stroke of the stretching device that many special-shaped steel I-beams of the present utility model constitute is 160～1200 millimeters.The utility model can be according to the actual needs of bridge, being 0～80 millimeter with the stroke between the adjacent girder steel is elementary cell, be designed to the stretching device that total stroke is 160～1200 millimeters a all size, satisfied the needs of municipal engineering construction, the bridge extension joint that stroke surpasses more than 1200 millimeters also can be according to form of structure of the present utility model particular design separately.
The utility model compared with prior art has following advantage: one, owing to adopted special-shaped steel I-beam bottom lead frame structure and the rectangle cant beam of load-bearing is directly passed the structure of frame construction, reduced the height of whole stretching device.Two, the right and left of rectangle cant beam and frame construction leaves certain clearance, the rectangle cant beam can be in frame construction the certain angle of slide displacement, and it is not stuck by both sides, therefore the utility model not only can be applicable to the bridge of gradient less than 5 degree, also can be applicable to the breaking joint linking greater than the skew bridge of 5 degree.Three, the setting of heavy splayed oblique beam can be transmitted transversely arranged girder steel bearing load power mutually, has reduced the flexural stress of girder steel.Four, axis is provided with the horizontal looseness of having controlled many transversely arranged girder steels.Five, the leverage under the base plate of girder steel is evenly separated the displacement between each girder steel, has improved the stationarity through the Crossing the bridge noodles vehicle.Six, be lined with oily nylon slide plate in the upper and lower utmost point frame of frame construction, make cant beam in frame construction, can slide, stretch free.
Now in conjunction with the accompanying drawings an embodiment of the present utility model is specified.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of A-A section among Fig. 1.
Fig. 3 is a vertical view of the present utility model.
Fig. 4 is a girder steel base plate of the present utility model bottom leverage structure chart.
Number in the figure is represented: 1-rubber telescopic band, and the 2-girder steel, the 3-frame construction, the 4-cant beam, 5-holds case, 6-sliding bearing seat, 7-spring bearer plate, 8-axis, 9-junction plate, 10-junction plate circular hole, 11-long lever, 1 2-short lever.
Be an embodiment of the present utility model (referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4) below.
This heavy splayed cant beam axis control formula bridge extension joint that is used for bridge breaking joint joining place comprises transversely arranged 4 special-shaped steel I-beams [2], adjacent girder steel [2] upper side between have rubber telescopic band [1] to connect.Under the base plate of adjacent special-shaped steel I-beam [2] leverage is housed, leverage is flexibly connected by short lever that is fixed on the base plate bottom [12] and long lever [11] and forms.Abnormity steel I-beam [2] bottom connecting frame structure [3], frame construction [3] is welded by the steel plate bar, is lined with oily nylon slide plate in the upper and lower sheet frame of frame construction [3].Frame construction [3] is slidingly connected with the rectangle cant beam [4] that vertically passes wherein, vertically the 4 rectangle cant beams [4] that distribute are heavy splayed oblique line distribution, the two ends of cant beam [4] respectively are provided with an oblique angle and hold case, the two ends of cant beam [4] place on the sliding bearing seat [6] that holds in the case [5], cant beam [4] top of holding in the case [5] is provided with arc elastic plate [7], axis at heavy splayed cant beam [4] is provided with longitudinal central axis [8], axis [8] passes the circular hole [10] of girder steel [2] bottom junction plate [9] and the horizontal girder steel [2] on top is slidingly connected, and circular hole is lined with elastic ring in [10].Stroke between the adjacent girder steel [2] of this bridge extension joint is 0～80 millimeter, and total stroke of the stretching device that four special-shaped i iron girder steels [2] constitute is 0～320 millimeter.
Claims (6)
1, a kind of heavy splayed cant beam axis control formula bridge extension joint that is used for bridge breaking joint joining place, comprise transversely arranged many special-shaped steel I-beams [2], adjacent girder steel [2] upper side between have rubber telescopic band [1] to connect, the two ends plush copper of telescopic band [1] embed adjacent girder steel [2] upper side to type mouth groove in, it is characterized in that: special-shaped steel I-beam [2] bottom connecting frame structure [3], frame construction [3] is welded by the steel plate bar, frame construction [3] is slidingly connected with the rectangle cant beam [4] that vertically passes wherein, vertically the many rectangle cant beams [4] that distribute are heavy splayed oblique line distribution, the two ends of cant beam [4] respectively are provided with a bevel and hold case [5], the two ends of cant beam [4] place on the sliding bearing seat [6] that holds in the case [5], arc spring bearer plate [7] is not put in cant beam [4] top of holding in the case [5], axis at heavy splayed cant beam [4] is provided with longitudinal central axis [8], and axis [8] passes the circular hole [10] of girder steel [2] bottom junction plate [9] and the horizontal girder steel [2] on top is slidingly connected.
2, bridge extension joint according to claim 1 is characterized in that: under the base plate of adjacent special-shaped steel I-beam [2] leverage is housed, leverage is flexibly connected by short lever that is fixed on the base plate bottom [12] and long lever [11] and forms.
3, bridge extension joint according to claim 1 is characterized in that being lined with oily nylon slide plate in the upper and lower sheet frame of the frame construction [3] that girder steel [2] bottom connects, and the distance between the upper and lower slide plate is complementary with the height of the rectangle cant beam [4] of vertical setting.
4, bridge extension joint according to claim 1 is characterized in that being lined with elastic ring in the circular hole [10] of junction plate [9] of girder steel [2] bottom.
5, bridge extension joint according to claim 1 is characterized in that the stroke between the adjacent girder steel [2] is 0～80 millimeter.
6, bridge extension joint according to claim 1 is characterized in that the total stroke of stretching device that transversely arranged many special-shaped steel I-beams [2] constitute is 160～1200 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97234999 CN2309359Y (en) | 1997-07-10 | 1997-07-10 | Sloping beam central-axis controlled bridge expansion apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97234999 CN2309359Y (en) | 1997-07-10 | 1997-07-10 | Sloping beam central-axis controlled bridge expansion apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2309359Y true CN2309359Y (en) | 1999-03-03 |
Family
ID=33946215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97234999 Expired - Fee Related CN2309359Y (en) | 1997-07-10 | 1997-07-10 | Sloping beam central-axis controlled bridge expansion apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2309359Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452580A (en) * | 2014-11-24 | 2015-03-25 | 贵州省交通规划勘察设计研究院股份有限公司 | Bridge modular pattern telescopic device anchoring method and structure |
| CN104562926A (en) * | 2014-12-25 | 2015-04-29 | 贵州省交通规划勘察设计研究院股份有限公司 | Bridge telescopic device anchoring structure |
| CN108342977A (en) * | 2018-02-28 | 2018-07-31 | 庄玉琼 | A kind of attachment device of bridge assembly for municipal science of bridge building |
-
1997
- 1997-07-10 CN CN 97234999 patent/CN2309359Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452580A (en) * | 2014-11-24 | 2015-03-25 | 贵州省交通规划勘察设计研究院股份有限公司 | Bridge modular pattern telescopic device anchoring method and structure |
| CN104452580B (en) * | 2014-11-24 | 2015-09-16 | 贵州省交通规划勘察设计研究院股份有限公司 | A kind of modular expansion device for bridge anchoring process and anchor structure |
| CN104562926A (en) * | 2014-12-25 | 2015-04-29 | 贵州省交通规划勘察设计研究院股份有限公司 | Bridge telescopic device anchoring structure |
| CN108342977A (en) * | 2018-02-28 | 2018-07-31 | 庄玉琼 | A kind of attachment device of bridge assembly for municipal science of bridge building |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100808212B1 (en) | The bridge upper structure pulling up for which construction bent for bridge upper structure pulling up and this were used | |
| US5301483A (en) | Composite, prestressed structural member and method of forming same | |
| KR100265579B1 (en) | Ladder-type sleepers and railway tracks | |
| CN2309359Y (en) | Sloping beam central-axis controlled bridge expansion apparatus | |
| KR101774990B1 (en) | Stress-distributing cable bridge using device for reducing sidewalk live load of cable fixture and method for constructing this same | |
| JPH09137412A (en) | Bridge reinforcing structure of viaduct | |
| CN100489194C (en) | Driveway for magnetic suspension train | |
| CN210946503U (en) | Prefabricated and sea and land transportation integrated support structure of super-large segmented steel structure bridge | |
| KR100592196B1 (en) | large number bracket in which supporter was installed is used and it is a bridge, multiplex point installed so that support might be carried out support bracket and its installation method | |
| US5553439A (en) | Composite, prestressed structural members and methods of forming same | |
| KR20020005788A (en) | mobile and fixative bridge maintaining system | |
| CN210238285U (en) | Breast board connecting structure for rail transit bridge | |
| KR100569226B1 (en) | Bottom plate reinforcement method of continuous bridge by inclined tension material | |
| JPH0931920A (en) | Reinforcing structure for structural body | |
| KR200351452Y1 (en) | Apparatus for decreasing negative moment and forming multiple supporting points with installed at the supporting point of Rahmen-type steel bridge | |
| CN205804200U (en) | Bridge strengthening device | |
| CN108149568B (en) | Full-service-life bolt-free multidirectional deflection comb plate type bridge expansion device and method | |
| CN118148291A (en) | Support-free concrete composite slab with pulley arch structure | |
| CN220335709U (en) | Precast concrete deck slab and girder steel connection structure | |
| CN219908566U (en) | Bridge expansion joint structure | |
| CN111439670B (en) | Wind-resistant and overturning-resistant device for quay crane and quay crane unit | |
| KR200333780Y1 (en) | large number bracket in which supporter was installed is used and it is a bridge, multiplex point installed so that support might be carried out support bracket | |
| KR20090095266A (en) | Apparatus for connecting bridge | |
| KR102003990B1 (en) | Bridge lifting apparatus for repairing bridge shoe and lifing method using it | |
| KR100553242B1 (en) | Apparatus for decreasing negative moment and forming multiple supporting points with installed at the supporting point of Rahmen-type steel bridge and building method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |